Years prior to the media empire, Blair will play Jenner as ex-wife to David Schwimmer’s Robert Kardashian, then Simpson’s attorney and confidant. Entertainment Weekly, meanwhile, reveals that Magnussen will play the role of Kato Kaelin, a guest at the Simpson property at the time of the infamous murder of Nicole Brown and Ron Goldman.

The 10-episode miniseries follows Jeffrey Toobin book The Run of His Life: The People v. O.J. Simpson, with episodes written by Scott Alexander & Larry Karaszewski, and directed by Ryan Murphy. Produced by Murphy, Nina Jacobson, Brad Simpson, Brad Falchuk and Dante Di Loretto, so reads the official synopsis for the new series, which begins production this year:

‘American Crime Story: The People v. O.J. Simpson’ is a look at the O.J. Simpson trial told from the perspective of the lawyers that explores the chaotic behind-the-scenes dealings and maneuvering on both sides of the court, and how a combination of prosecution confidence, defense wiliness, and the LAPD’s history with the city’s African-American community gave a jury what it needed: reasonable doubt.